Well firstly the term "God fearing" is misrepresented here, and is often misinterpreted. Fear of God for believers is not tremble in your boots and wait to be struck by God's wrath it's speaking of reverence and awe. Hebrews 12:28-29 is a good description of this: “Therefore, since we are receiving a kingdom that cannot be shaken, let us be thankful, and so worship God acceptably with reverence and awe, for our ’God is a consuming fire.’” This reverence and awe is exactly what the fear of God means for Christians. This is the motivating factor for us to surrender to the Creator of the Universe.
My daughter doesn't fear God and she has not just sympathy for people but empathy. She is 11 years old and still naive to people's motives at times but her teacher told me she is amazed at my daughters behavior towards to the children that bully her. One girl that punched my daughter in the face several months before, was sitting alone crying at lunch and my daughter went and sat by her . The teacher wrote me a note about it. When someone made of the bully for talking to my daughter she got up and threw her milk all over her. My daughter came home upset, she never expressed any hatred towards her she said...."you know what mom, I'm just gonna pray for her, I think her step dad is mean to her and I think I just need to pray".
So, I don't know what "God fearing" children you are seeing but don't categorize all of them. Children who are taught Godly morals are nothing to be sad about.